Hydrogen-Sensor Prepared Using Proton-Conducting Glass Films

Midori Matsumura; Yusuke Daiko; Masayuki Nogami

doi:10.4028/www.scientific.net/SSP.124-126.627

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Hydrogen-Sensor Prepared Using Proton-Conducting Glass Films

Abstract:

Solid-state potentiometric thin film hydrogen gas sensors were successfully fabricated using a sol-gel-derived high proton-conducting P2O5-SiO2 glass films. Manganese oxide thin film coated on an indium tin oxide (ITO)-coated glass substrate was used for reference electrode. The sensor exhibited high speed responsibility within 10 s and 120 s at 30 oC and -30oC, respectively, for 1 vol.% hydrogen gas. A linear relationship between the electromotive force (EMF) and the logarithmic hydrogen concentration of 0.1~1 vol.% was obtained in the temperature ranging from -30 to 30 oC. The sensing mechanism was also discussed to improve the sensitivity and sensing speed against low H2 concentration at low temperatures.

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Periodical:

Solid State Phenomena (Volumes 124-126)

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627-630

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.124-126.627

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Online since:

June 2007

Authors:

Midori Matsumura, Yusuke Daiko, Masayuki Nogami

Keywords:

Film, Hydrogen, Sensor, Sol-Gel (SG)

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References

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